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All Journal JBIO: jurnal biosains (the journal of biosciences) PELANGI PENDIDIKAN Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) JURNAL PENELITIAN SAINTIKA SEMIRATA 2015 JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pendidikan Kimia Universitas Riau Jurnal Tadris Kimiya J-PEK (JURNAL PEMBELAJARAN KIMIA) Jurnal Pendidikan Kimia (JPKim) JOURNAL OF SCIENCE AND SOCIAL RESEARCH Best Journal (Biology Education, Sains and Technology) INFOKUM Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) JURNAL PENDIDIKAN SAINS SOSIAL DAN AGAMA Indonesian Journal of Chemical Science and Technology Jurnal Pengabdian kepada Masyarakat Britain International for Linguistics, Arts and Education Journal (BIoLAE Journal) Indonesian Science Education Research (ISER) JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN Jurnal Pendidikan Indonesia (Japendi) Jurna Beta Kimia Chemedu: Jurnal Ilmiah Pendidikan Kimia Jurnal Multidisiplin Indonesia Jurnal Pendidikan IPA Indonesia
Jamalum Purba
Department Of Chemistry Education, Faculty Of Mathematics And Natural Sciences, Universitas Negeri Medan, Jl. Williem Iskandar Pasar V, Medan, 20221
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Pengembangan Modul Berbasis Discovery Learning Terintegrasi Literasi Sains pada Materi Laju Reaksi Feronica Agustina Ginting; Ricky Andi Syahputra; Jamalum Purba; Ani Sutiani; Ratu Evina Dibyantini
Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Vol 4, No 2 (2022): OKTOBER 2022
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v4i2.35671

Abstract

Module is structured to provide teaching materials that are in accordance with curriculum set by considering needs of students in the learning process. This research is a type of Research and Development (R&D) research that aims to develop a discovery learning module on the reaction rate material. This research refers to the steps of Borg and Gall which are limited to five stages. First stage begins with data and information collection, discovery learning-based module development planning, initial product development, initial field trials, and revision of test results. Modules have been developed will be validated by media expert validators and material experts, each by three chemistry lecturers at the Unimed campus. Then the module was tested by looking the responses for 3 chemistry teachers and class XI students of SMA N 1 BangunPurba. The results showed that the discovery learning module on the reaction rate material was declared feasible after being validated by obtaining an average percentage of media experts 83.2%, average material experts 85.4%. And the module is declared interesting after obtaining a percentage with an average teacher response of 94.6% and student responses getting an average of 82%.Modul disusun untuk menyediakan bahan ajar yang sesuai dengan kurikulum yang ditetapkan dengan mempertimbangkan kebutuhan siswa dalam proses pembelajaran. Penelitian ini merupakan jenis penelitian Research and Development (R&D) yang bertujuan untuk mengembangkan modul berbasis discovery learning yang mengintegrasikan literasi sains pada materi laju reaksi. Penelitian ini mengacu pada langkah - langkah Borg and Gall yang dibatasi pada lima tahap. Tahap pertama dimulai dengan pengumpulan data dan informasi, perencanaan pengembangan modul berbasis discovery learning, pengembangan produk awal, uji coba lapangan awal, dan revisi hasil tes. Modul yang telah dikembangkan akan divalidasi oleh validator ahli media dan ahli materi, masing - masing oleh tiga orang dosen kimia Universitas Negeri Medan. Kemudian modul diuji dengan melihat respon menggunakan angket terhadap modul yang dikembangkan untuk 3 orang guru kimia dan siswa kelas XI SMA N 1 Bangun Purba yang berjumlah 36 siswa. Hasil penelitian menunjukkan bahwa pembelajaran discovery learning berbasis modul literasi sains terpadu pada materi laju reaksi dinyatakan layak setelah divalidasi dengan memperoleh persentase rata - rata ahli media 83,2 %, rata - rata ahli materi 85,4 %. Dan modul dinyatakan menarik setelah mendapatkan persentase dengan rata - rata respon guru 94,6 % dan respon siswa mendapatkan rata - rata 82 %.
DEVELOPMENT OF PROBLEM BASED LEARNING (PBL) CHEMISTRY LEARNING MODULE ON SOLUBILITY AND SOLUBILITY PRODUCTS IN CLASS XI SMA NEGERI 15 MEDAN Freddy Tua Musa Panggabean; Juan Samuel Simanjuntak; Harvei Desmon Hutahaean; Jamalum Purba; Ani Sutiani
INFOKUM Vol. 10 No. 5 (2022): December, Computer and Communication
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the development of a chemistry learning module based on Problem Based Learning (PBL) on Solubility and Solubility Products in Class XI SMA Negeri 15 Medan. The sample in this study consisted of one class consisting of 30 students who were taught using the Problem Based Learning model. The instrument used is a test in the form of essay questions. The results showed that 1) the learning module based on Problem Based Learning on the material solubility and solubility product of chemistry learning which was developed based on expert judgment had met the BSNP eligibility standard, the average validation results obtained an average content feasibility score (3.84), the feasibility language (3.75), feasibility of presentation (3.75) and feasibility of graphics (3.76); 2) based on the assessment of teacher and student responses that have met the BSNP eligibility standards obtained based on material (3.84), appearance (3.87) and benefits (3.69); 3) student learning outcomes after being taught using Problem Based Learning chemistry learning modules are higher than the KKM (75) with an average of 81.07.
Pengembangan Bahan Ajar Berbasis Inkuiri Terbimbing Pada Materi Ikatan Kimia Untuk Siswa Kelas X Bunga Dewi; Jamalum Purba
Jurnal Pendidikan Indonesia Vol. 3 No. 10 (2022): Jurnal Pendidikan Indonesia (Japendi)
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.641 KB) | DOI: 10.36418/japendi.v3i10.1193

Abstract

This study aims to determine the feasibility of presenting Guided Inquiry-Based Teaching Materials in accordance with BSNP standards, which include: (1) Content Feasibility, (2) Presentation Feasibility, (3) Language Feasibility, and (4) Graphical Feasibility. knowing the students' responses to guided inquiry-based teaching materials on ionic bonds and covalent bonds. This research was developed using the Research & Development (R&D) method using a development model in the form of ADDIE. This research was conducted at the State University of Medan (UNIMED) and SMA Negeri 1 Sunggal, the teaching materials were validated by a Chemistry Lecturer, Chemistry teacher, and the responses of 20 students of SMA class X MIPA. The instrument used is a questionnaire according to BSNP standards. The results of this study indicate that through the development of Guided Inquiry-Based Teaching Materials on Chemical Bonding Materials for Class X High School Students: (1) Average Feasibility of Content by Lecturers is 3.58 and by Teachers 3.44., (2) Average Eligibility Presentation by Lecturer 3.73 and by Teacher 3.53., (3) Average Feasibility of Language by Lecturer 3.77 and by Teacher 3.58., (4) Average Feasibility of Graphics by Lecturer 3.75 and by Lecturer Teacher 3.55. And the average result of student responses is 3.70. This means that the teaching materials that have been developed are feasible and do not need to be revised
Analysis Student Motivation and Learning Outcomes by Apllying Problem Based Learning and Discovery Learning Models Freddy Tua Musa Panggabean; Pasar Maulim Silitonga; Jamalum Purba; Jasmidi Jasmidi; Rica Ariani Purba
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol 5, No 1 (2023): APRIL 2023 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v5i1.42419

Abstract

Problem Based Learning and Discovery Learning are models that can increase motivation and learning outcomes of Macromedia Flash-based students on chemical equilibrium materials. The instruments used in this study are test instruments with a cognitive level of C3-C5 and non-test instruments of learning motivation questionnaires. This study aims to: 1) To determine the differences in learning outcomes with the PBL and DL models; and 2) To find a linear and significant relationship between motivatIon and student learning outcomes. The sample was 64 students of class XI MIPA 1 and MIPA 2 who were taken using random sampling techniques. Data analysis using a two-party t-test and a correlation test. The results: 1) There were differences in chemistry learning outcomes of students who were using the PBL and DL models. Where student learning outcomes obtained PBL model (18,219±2,268) and student learning outcomes using the DL model (16,438±2,327) with tvalue (3,101) > ttable (2.00) and a sig value (0.003)< sig(0.05). 2) There is a linear and significant correlation between motivation and student learning outcomes where in the PBL model obtained r count (0.773) > r table (0.349) and dl model obtained rcount (0.770) > r table (0.349) with sig(0.000) value < sig (0.05).
Development of Project-Based Learning Modules on the Subject of Chemical Equilibrium Jamalum Purba; Bilham Aditia Sembiring
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol 5, No 1 (2023): APRIL 2023 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v5i1.44030

Abstract

This study aims to determine the feasibility of project-based learning modules on the subject of chemical equilibrium in accordance with BNSP requirements, which include: (1) Content Feasibility, (2) Presentation Feasibility, (3) Language Eligibility, and (4) Graphic Feasibility, this research also aims to determine student responses to project-based learning modules on the subject of chemical equilibrium. This research was developed using the Research & Development (R&D) method using the ADDIE development model. This research was conducted at Medan State University (UNIMED) and SMA Negeri 6 Binjai. The results of this study indicate that through the development of project-based learning modules on the subject of chemical equilibrium: (1) Average content eligibility by lecturers is 3.7 and by teachers 3.8., (2) Average eligibility presentation by lecturers is 3, 6 and by the teacher 3.7., (3) The average of language proficiency by the lecturer is 3.5 and by the teacher 3.7., (4) The average graphic proficiency by the lecturer is 3.9 and by the teacher 3.8. And the average result of student responses is 3.73. This means that the learning module that has been developed is feasible and does not need to be revised.
EXECUTIVE SUMMARIES OF TEACHER’S ABILITY ON TPACK IN NORTH SUMATERA: PRELIMINARY RESEARCH ON THE DEVELOPMENT OF SCIENCE LITERACY-BASED LEARNING MODELS Jamalum Purba; Mariati P Simanjuntak; Ely Djulia; Halim Simatupang; Aristo Hardinata
ISER (Indonesian Science Education Research) Vol 5, No 1 (2023): ISER
Publisher : UNIVERSITAS NEGERI MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/iser.v5i1.49412

Abstract

To be able to teach scientific literacy to students, teachers need scientific literacy competencies and are in line with TPACK (Technological Pedagogical Content Knowledge) competencies. This research was initial research in the development of learning models which aims to determine the extent of the TPACK abilities of science teachers in North Sumatra. The method used in this study was a qualitative descriptive method by describing data in the form of numbers and direct interviews. The instrument used was TPACK multiple choice questions that had been previously developed and proven valid to be able to measure the TPACK ability of science teachers which consisted of 40 questions. The research sample was determined by purposive sampling method. From the sampling results, 20 science teachers were selected from 10 junior high schools in North Sumatra
Formulation and antibacterial activity of frankincense sap extract deodorant spray (Styrax benzoin) Nora Susanti; Jamalum Purba; M Nizam; Cindy Agnesia; Astri Devi Br Pakpahan
Jurnal Pendidikan Kimia (JPKIM) Vol 15, No 3 (2023): December
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkim.v15i3.49009

Abstract

Deodorant is a cosmetic preparation used by the wider community to control and reduce body odor. Deodorant act as antibacterial and are able to reduce the excretion of sweat in the armpits. Frankincense is a plant that contains flavonoids and tannins can act as antibacterial. This aim of this study was to determine the effectiveness of frankincense sap extract as an antibacterial in deodorant spray preparation. Frankincense sap powder is macerated with ethanol to obtain frankincense sap extract. Deodorant formulations are prepared from frankincense sap extract in various concentrations (5%, 10%, 15%, 20%, 25%) and combined with cosolvent, emollient, and solvent. Tests carried out include antibacterial testing against Pseuodomonas aureugenisa and Staphylococcus epidermidis bacteria, organoleptic test, pH test, viscosity test, and irritation test. The test results showed that antibacterial testing gave the highest inhibitory diameter of 2.63 mm and 5.35 mm which was exhibited by formulation 5.Keywords: Bacteria; Body odor; Deodorant spray; Styrax benzoin
Analysis of Students' Learning Outcomes and Scientific Literacy Activities Using Guided Inquiry and Discovery Learning Models Menti Irawati Purba; Ricky Andi Syahputra; Jamalum Purba; Ani Sutiani; Pasar Maulim Silitonga
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol 5, No 2 (2023): OCTOBER 2023 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v5i2.55908

Abstract

This research aims to find out whether the Guided Inquiry learning model is better than Discovery Learning in improving scientific literacy activities and student learning outcomes on reaction rate material. The research method used is quasi experimental. The sample from this research consisted of two classes, namely experimental class I which was taught using the guided inquiry learning model, totaling 29 students and experimental class II, which was taught using the Discovery Learning model, totaling 27 students. The results of data analysis show that the average learning outcomes of students using Guided Inquiry (80.69) are higher than the average learning outcomes of students taught using the Discovery Learning model (74.63) and the average scientific literacy activities of students using Guided Inquiry (79.15 ) higher than the average using the Discovery Learning model (73.72). Hypothesis results using the right-hand t-test and α = 0.05 obtained tcount > ttable (2.34 > 1.675) for students' scientific literacy activities and tcount > ttable (2.49 > 1.675) for student learning outcomes so that in this study the null hypothesis (Ho) is rejected and the alternative hypothesis (H₂) is accepted. Thus, it was found that the Guided Inquiry learning model was better than Discovery Learning in improving scientific literacy activities and student learning outcomes on reaction rate material.
The Influence of Problem Based Learning and Media to Increase Student Interest and Learning Outcomes Siti Muliana Tambunan; Jamalum Purba; Freddy Tua Musa Panggabean
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol 6, No 1 (2024): APRIL 2024 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v6i1.57337

Abstract

The aim of this research is to find out whether there is an influence of the use of problem and video based learning models on student interest and learning outcomes. This research was conducted at SMA Negeri 14 Medan and the research population was all class. In the research, the pretest score was 34.85 and the posttest score was 80.28. Normality and homogeneity tests were carried out and the results showed normal distribution. In hypothesis testing using One Sample T-Test, a Sig.(2-Tailed) value of 0.002 was obtained. Therefore, a value of 0.002< α (0.05) means that the hypothesis is accepted, which shows that there is an influence of the use of problem-based learning models and videos on student learning outcomes in chemical bonding material. Meanwhile, for the results of student interest in learning, the average score obtained was 76.06 in the high category. This shows that there is an influence of the use of problem-based learning models and videos on students' learning interest in chemical bonding material.
The Influence of the Problem Based Learning Model on Student Interest and Learning Outcomes Priskilla Ginting; Jamalum Purba
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol 6, No 1 (2024): APRIL 2024 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v6i1.57279

Abstract

This research aims to (1) determine the effect of using the Problem Based Learning model on student learning outcomes in reaction rate material (2) knowing the effect of using models Problem Based Learning on students' learning interest in reaction rate material. The population of this study were all students of class XI MIPA SMAN 14 Medan. The sampling technique was carried out random sampling, namely class XI MIPA 3 as an experimental class with 34 students. The results obtained are the average value of the experimental data class pretest and posttest is 37.50 and 79.85, which means it is higher than the minimum completeness criteria (KKM) value, namely 75. Data from the normality and homogeneity tests obtained normal distribution and homogeneous data. The results of the hypothesis test were carried out using one sample t-test at the significance level α = 0.05, earned value tcount 2.403 > ttable 1.692 with sig. (2 tailed) 0.022 < α = 0.05 so Ha is accepted and H0 is rejected. Students' interest in learning in the experimental class obtained an average score of 77.02 with high criteria of 47.1% and medium criteria of 52.9%.
Co-Authors Abdul Hamid K Agustina, Mutiara Ahmad Nasir Pulungan Angelina Barus, Maria Ani Sutiani Ani Sutiani Aristo Hardinata Asep Wahyu Nugraha Astri Devi Br Pakpahan Azizah, Meilani Bilham Aditia Sembiring Budi Ali Mukmin Bunga Dewi Cindy Agnesia Cintiya, Henni Dedi P Simatupang Dewi Wulandari Dewi Wulandari Eidi Sihombing Ely Djulia Fadhilah, Nabila Nur Feronica Agustina Ginting Fonica, Arini Freddy Tua Musa Panggabean Ginting, Priskilla Gultom, Risdo Halim Simatupang Hery Widijanto Hutahaean, Harvei Desmon Hutapea, Delima Damayanti Intan Juwita, Intan Jasmidi Jasmidi Jasmidi Jasmidi Juan Samuel Simanjuntak Krisbiantoro, Philip Anggo Lamria, Melinda Lena Lisnawaty Simatupang M Nizam Manalu, Santa Maria manihar Situmorang, manihar Maria Angelina Barus Marudut Sinaga Meilani Azizah Menti Irawati Purba Mery Adelin Panggabean Muhammad Haris Effendi Hasibuan Muhammad Isnaini Muhammad Isnaini Nora Susanti Nora Susanti Nora Susanti Novelyani Siregar Oktaria, Feri Bidiana Pasar Maulim Silitonga Pasar Maulim Silitonga Priskilla Ginting Purba, Menti Irawati Purba, Rica Ariani Purba, Rohni Duani Rahmatsyah Rahmatsyah, Rahmatsyah Ratu Evina Dibyantini Rica Ariani Purba Risdo Gultom Riska Fitria, Riska Rolian Ade Fitri Sabani Sabani Sanimah Sembiring, Bilham Aditia Siahaan, Ella Oktavianna Sibuea, Gorat Viktor Simamora, Putri Elsa Simangunsong, Garvin Simangunsong, Garvin Brilly Anugerah Simanjutak, Mariati Purnama Simanullang, Tasya Putri Haren Sinaga, Bunga Apriani Sinulingga, Kiki A. Putri Br. Sipahutar, Putri Desiana Siti Muliana Tambunan Siti Rohana Siregar Sutiani, Ani Syahputra, Ricky Andi Syahputra, RickyAndi Tambunan, Salsabila Tambunan, Siti Muliana Tarigan, Miska Likasina Tiur Malsari Siregar Yosia Gopas Oetama Manik Yusnidar, Erika Zainuddin Muchtar Zuhairiah Nasution, Zuhairiah